You can customize the value for a specific color, or add a custom color. Refer to the AutoCAD color index defined in the DXF specification.
Examples
<SMS_COLORS>
<!-- AUTOCAD DXF uses Color Index -->
<SMS_COLOR NAME="Black" VALUE="0"/>
<SMS_COLOR NAME="White" VALUE="7"/>
<SMS_COLOR NAME="Blue" VALUE="5"/>
<SMS_COLOR NAME="Green" VALUE="3"/>
<SMS_COLOR NAME="Yellow" VALUE="2"/>
<SMS_COLOR NAME="Cyan" VALUE="4"/>
<SMS_COLOR NAME="Red" VALUE="1"/>
<SMS_COLOR NAME="Magenta" VALUE="6"/>
<SMS_COLOR NAME="Violet" VALUE="221"/>
<SMS_COLOR NAME="Crimson" VALUE="242"/>
<SMS_COLOR NAME="Lime" VALUE="90"/>
<SMS_COLOR NAME="Olive" VALUE="86"/>
<SMS_COLOR NAME="Purple" VALUE="212"/>
<SMS_COLOR NAME="LightBlue" VALUE="141"/>
<SMS_COLOR NAME="PeachPuff" VALUE="31"/>
<SMS_COLOR NAME="Gray" VALUE="9"/>
<SMS_COLOR NAME="Orange" VALUE="30"/>
<SMS_COLOR NAME="Pink" VALUE="220"/>
<SMS_COLOR NAME="Beige" VALUE="43"/>
<SMS_COLOR NAME="LightOrange" VALUE="31"/>
</SMS_COLORS>
Replace the color name in the SMS_STYLE with VALUE in SMS_COLOR:
<SMS_STYLE>
<LAYER>PartInfo</LAYER>
<COLOR>Black</COLOR>
<FONT>Arial</FONT>
<TEXT_HEIGHT>125</TEXT_HEIGHT>
<TEXT_JUSTIFY>left</TEXT_JUSTIFY>
<TEXT_ANGLE>0</TEXT_ANGLE>
</SMS_STYLE>
To apply the magenta color to a direction mark, you can add the following lines:
SMS_MARKINGS>
<SMS_MARKING TYPE="strmfg_direction" MARKED_SIDE="marking">
<SMS_EDGE TYPE="*">
<SMS_STYLE>
<LAYER>Marking</LAYER>
<COLOR>Magenta</COLOR>
<LINEWEIGHT>Normal</LINEWEIGHT>
<LINETYPE>Normal</LINETYPE>
</SMS_STYLE>
</SMS_EDGE>
Example with added lines for magenta color:
<SMS_MARKINGS>
<SMS_MARKING TYPE="strmfg_direction" MARKED_SIDE="marking">
<SMS_EDGE TYPE="*">
<SMS_STYLE>
<LAYER>Marking</LAYER>
<COLOR>Magenta</COLOR>
<LINEWEIGHT>Normal</LINEWEIGHT>
<LINETYPE>Normal</LINETYPE>
</SMS_STYLE>
</SMS_EDGE>
<CVG_TEXT>
<SMS_STYLE>
<LAYER>Annotation</LAYER>
<COLOR>Magenta</COLOR>
<FONT>Arial</FONT>
</SMS_STYLE>
</CVG_TEXT>
</SMS_MARKING>